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问题 单项选择题

( )是指在一定技术组织条件下，各生产环节为了保证数量商的衔接所必需的、最低限度的在制品储备量。

A．节拍

B．节奏

C．在制品定额

D．生产间隔期

答案

参考答案：C

选择题
Suddenly the man stopped and looked around as if _____ whether he was followed.

A. to see
B. having see
C. to have seen
D. seeing
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选择题

The Internet is a wonderful discovery,________of great significance to people’s lives.

A．which I think is

B．which I think it is

C．as I think

D．as is I think
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